Pressure contact connector of cell phone and connection structure of the connector

ABSTRACT

A housing  20  integrally formed with a light guide  10  in which a liquid crystal module of a cellular phone is mounted, a multiple number of hollow, conductive toe-pins  28  which are inserted in respective passage holes  23  of the housing  20  and slidably come out from the undersurface of housing  20 , and conductive head pins  30  which each are fitted into respective conductive toe-pins  28  and slidably come out from the top surface of housing  20 , are provided. A coil spring  32  is interposed between each conductive toe-pin  28  and conductive head pin  30  and elastically urges the conductive toe-pin  28  and conductive head pin  30 , so that they come out from both sides of housing  20.

TECHNICAL FIELD

[0001] The present invention relates to a press-contact type connectorfor cellular phones and a connecting structure therefor, and moredetailedly relates to a press-contact type connector used for electricconnection between a liquid crystal module (COG, COF) for the display ofa cellular phone and a circuit board.

BACKGROUND ART

[0002] Conventionally, when a liquid crystal module of a cellular phoneis electrically connected to an electronic circuit board, though notillustrated, a press-contact type connector is press fitted into anattachment hole of a light guide that constitutes the cellular phone,and this press-contact type connector is compressively sandwichedbetween the liquid crystal module and the electronic circuit board so asto establish conduction between the liquid crystal module and electroniccircuit board. This press-contact type connector has a multiple numberof conductive metal wires arranged on the curved surface of a resilientelastomer having a semi-elliptic section, these conductive metal wiresestablishing conduction between the liquid crystal module and electroniccircuit board.

[0003] Since, in the conventional press-contact type connector forcellular phones, a separate press-contact type connector is merely pressfitted into the light guide attachment hole as described, it entailscritical problems in that the press-contact type connector may setskewed or may be buckled due to the way of, and conditions of pressing.Further, since the light guide attachment hole needs to be shaped withhigh dimensional accuracy, the shaping faces marked difficulties.

[0004] On the other hand, since recent cellular phones are ferventlybeing developed into thin, compact and light-weighted configurations,the press-contact type connector needs to be reduced in height to followthis trend. However, since the conventional press-contact type connectoris constructed as stated above, it is extremely difficult to reduce theheight (about 5 mm), hence it is impossible to shorten the conductionpath. There is also a strong demand for a press-contact type connectorthat can establish connection with a low load.

[0005] The present invention has been devised in the above view. It istherefore an object of the present invention to provide a press-contacttype connector for cellular phones and a connecting structure therefor,which is free from skewed connector setting and can realize low-loadconnection with a shortened conduction path by reducing the connectorheight.

DISCLOSURE OF INVENTION

[0006] The present invention has been devised in order to achieve theabove object, and the gist of the invention is as follows:

[0007] The first aspect of the present invention resides in apress-contact type connector for cellular phones, comprising: a hollow,conductive toe-pin which is inserted in a passage hole of a housing andexposed from one side of the housing; and a conductive head pin which isfitted into the conductive toe-pin and is slidably projected from theopposite side of the housing, characterized in that the housing and alight guide to which at least a liquid crystal module is mounted areintegrated, a spring element is provided between the conductive toe-pinand the conductive head pin so as to urge at least the conductive headpin in the direction of the opposite side of the housing.

[0008] Next, the second aspect of the present invention resides in thepress-contact type connector for cellular phones defined in the abovefirst aspect, wherein the distal end of the conductive head pin isinclined at a predetermined angle with respect to a plane perpendicularto the axis of the passage hole of the housing, so that the conductivehead pin is contacted with the conductive toe-pin in an inclinedposition within the conductive toe-pin, establishing a conduction pathbetween the conductive toe-pin and conductive head pin thus in contact.

[0009] Further, the third aspect of the present invention resides in thepress-contact type connector for cellular phones defined in the abovefirst aspect, wherein an engagement flange for the spring element isprojected outwardly from the outer peripheral surface of each of theconductive toe-pin and the conductive head pin, the opposing face thatopposes the engagement flange of the conductive toe-pin, of theengagement flange of the conductive head pin is inclined at apredetermined angle with respect to a plane perpendicular to the axis ofthe passage hole, so that the conductive head pin is contacted with theconductive toe-pin in an inclined position within the conductivetoe-pin, establishing a conduction path between the conductive toe-pinand conductive head pin thus in contact.

[0010] Moreover, the fourth aspect of the present invention resides in aconnecting structure for a press-contact type connector for cellularphones, characterized in that the press-contact type connector forcellular phones comprises: a hollow, conductive toe-pin which isinserted in a passage holes of a housing and exposed from one side ofthe housing; and a conductive head pin which is fitted into theconductive toe-pin and is slidably projected from the opposite side ofthe housing, wherein the housing and a light guide to which at least aliquid crystal module is mounted are integrated, a spring element isprovided between the conductive toe-pin and the conductive head pin soas to urge at least the conductive head pin in the direction of theopposite side of the housing, and the press-contact type connector isdisposed between a pair of opposing electrodes so as to establishconduction.

[0011] Still more, the fifth aspect of the present invention resides inthe connecting structure for a press-contact type connector for cellularphones defined in the above fourth aspect, wherein the distal end of theconductive head pin is inclined at a predetermined angle with respect toa plane perpendicular to the axis of the passage hole of the housing, sothat the conductive head pin is contacted with the conductive toe-pin inan inclined position within the conductive toe-pin, establishing aconduction path between the conductive toe-pin and conductive head pinthus in contact.

[0012] Next, the sixth aspect of the present invention resides in theconnecting structure for a press-contact type connector for cellularphones defined in the above fourth aspect, wherein an engagement flangefor the spring element is projected outwardly from the outer peripheralsurface of each of the conductive toe-pin and the conductive head pin,the opposing face that opposes the engagement flange of the conductivetoe-pin, of the engagement flange of the conductive head pin is inclinedat a predetermined angle with respect to a plane perpendicular to theaxis of the passage hole, so that the conductive head pin is contactedwith the conductive toe-pin in an inclined position within theconductive toe-pin, establishing a conduction path between theconductive toe-pin and conductive head pin thus in contact.

[0013] Here, the housing in the present invention can be modified freelyin shape, and may be given in a rectangular, square, oval or other form.The conductive toe-pin may be projected or may be projected by thespring element and slidable as long as it is exposed from one side ofthe housing. The light guide should be configured so that at least theliquid crystal module can be mounted, and may be configured so thatelectro-acoustic parts (e.g., speakers, various types of microphones),peripheral connector parts such as keypads etc. can be mounted. Thespring element is generally of a coil spring, but other kinds of springsmay be selected as long as they can provide the same function. Further,there are various types of cellular phones, but the invention can beapplied to any type.

BRIEF DESCRIPTION OF DRAWINGS

[0014]FIG. 1 is an illustrative view showing a cellular phone to whichan embodiment of a press-contact type connector for cellular phonesaccording to the present invention is applied.

[0015]FIG. 2 is an illustrative view showing the combined state of alight guide and a liquid crystal module in an embodiment of apress-contact type connector for cellular phones according to thepresent invention.

[0016]FIG. 3 is a side view of FIG. 2.

[0017]FIG. 4 is an illustrative view showing a light guide in anembodiment of a press-contact type connector for cellular phones and itsconnecting structure according to the present invention.

[0018]FIG. 5 is a side view of FIG. 4.

[0019]FIG. 6 is an illustrative view showing a liquid crystal module inan embodiment of a press-contact type connector for cellular phones andits connecting structure according to the present invention.

[0020]FIG. 7 is a partial illustrative view showing an embodiment of apress-contact type connector for cellular phones and its connectingstructure according to the present invention, (a) a sectionalillustrative view showing a case where a separate housing is built in alight guide, (b) a sectional illustrative view showing a case where aplate of a housing is molded as a part of a light guide and anotherplate is assembled in the light guide.

[0021]FIG. 8 is a partial sectional illustration showing an embodimentof a press-contact type connector for cellular phones according to thepresent invention.

[0022]FIG. 9 is a side view of FIG. 8.

[0023]FIG. 10 is a plan view of FIG. 8.

[0024]FIG. 11 is an illustrative view showing a conductive head pin inan embodiment of a press-contact type connector for cellular phones andits connecting structure according to the present invention.

[0025]FIG. 12 is a plan view of FIG. 11.

[0026]FIG. 13 is a partial sectional illustration showing the secondembodiment of a press-contact type connector for cellular phonesaccording to the present invention.

[0027]FIG. 14 is an illustrative view showing a conductive head pin inthe third embodiment of a press-contact type connector for cellularphones and its connecting structure according to the present invention.

[0028]FIG. 15 is an illustrative view showing a conductive head pin inthe fourth embodiment of a press-contact type connector for cellularphones and its connecting structure according to the present invention.

BEST MODE FOR CARRYING OUT THE INVENTION

[0029] Now, preferred embodiment of the present invention will bedescribed with reference to the drawings. A press-contact type connectorfor cellular phones in the present embodiment includes: as shown inFIGS. 1 through 12, a housing 20 built in and integrally formed in thelower part of a light guide 10 in which a liquid crystal module 1 of thecellular phone is arranged; a multiple number of hollow, conductivetoe-pins 28 which are inserted in respective passage holes 23 of thehousing 20 and slidably come out from the undersurface of housing 20;conductive head pins 30 which each are fitted into respective conductivetoe-pins 28 and slidably come out from the top surface of housing 20. Acoil spring 32 is interposed between each conductive toe-pin 28 andconductive head pin 30 and elastically urges the conductive toe-pin 28and conductive head pin 30 arranged coaxially, so that they come outfrom the top and bottom surfaces of housing 20.

[0030] Cellular phone liquid crystal module 1 is basically formed in athin plate shape as shown in FIG. 6, and is formed with a glasselectrode 2 at the lower part of its obverse surface. A liquid crystalIC driver 3 is mounted in this glass electrode 2. As shown in FIGS. 2 to5, light guide 10 is basically formed in a rectangular shape usingtransparent polycarbonate or the like which is excellent in impactresistance etc., and includes a rectangular, liquid crystal modulesetter 11 for the liquid crystal module and fixing claws 12 disposed atthe upper side and both sides enclosing the setter 11 for engagement ofthe liquid crystal module. Light guide 10 may be formed usingmulti-purpose engineering plastics which are excellent in heatresistance, dimensional stability, moldability and the like,specifically, ABS resin, polypropylene, polyvinyl chloride, polyethyleneand the like.

[0031] As shown in FIGS. 7(a) and 7(b) to FIG. 10, housing 20 is formedin a flat rectangular shape by laminating a pair of elongated thinplates 21 and 22, one over the other, and has small-diametric passageholes 23 formed in a row along the length at intervals of apredetermined pitch (e.g. 0.5 to 1.27 mm). Each plate 21 and 22 ismolded into a plate, using multi-purpose engineering plastics which areexcellent in heat resistance, dimensional stability, moldability and thelike, specifically, ABS resin, polycarbonate, polypropylene, polyvinylchloride, polyethylene, etc. Among these, transparent polycarbonate isthe most suitable.

[0032] For integration of housing 20, a separate housing 20 may be builtinto light guide 10 (see FIG. 7(a)). Alternatively, plate 22 as at leastpart of housing 20 may be molded as a part of light guide 10 while plate21 may be separately built into light guide 10 (see FIG. 7(b)).

[0033] Each passage hole 23 is composed of, as shown in FIG. 7(a), areduced-diametric bore 24 formed in the lower plate 21, alarge-diametric bore 25 located above and continuous from thereduced-diametric bore 24 via a step, a large diametric bore 26 formedin the upper plate 22 and continuous from the large-diametric bore 25 ofthe lower plate 21, and a reduced-diametric bore 27 located above andcontinuous from the large-diametric bore 26 via a step.

[0034] Each conductive toe-pin 28 is formed of, as shown in FIGS. 7 to9, a cylinder with a bottom having a U-shaped section, usingnickel-plated or gold plated conductive material such as copper, brass,aluminum, etc. The underside of this hollow, conductive toe-pin 28sticks out from the undersurface of plate 21 and is connected to anelectrode 41 of an electronic circuit board 40 with a solder layer, ACFor the like, to establish reliable conduction. An annular engagementflange 29 is projected radially outwardly from the outer peripheral sideof conductive toe-pin 28. This engagement flange 29 engages the steppedportion between the reduced-diametric bore 24 and large-diametric bore25 in plate 21, so as to effectively prevent conductive toe-pin 28 fromfalling or dislodging.

[0035] Each conductive head pin 30, as shown in FIGS. 7 to 12, isbasically formed in a cylindrical shape, using gold plated conductivematerial such as copper, brass, aluminum, etc. This conductive head pin30 has an annular engagement flange 31 which is projected radiallyoutwardly from the outer peripheral side thereof. This engagement flange31 engages the stepped portion between the large-diametric bore 26 andreduced-diametric bore 27 in plate 22, so as to prevent conductive headpin 30 from dislodging or the like. The upper part of conductive headpin 30 is projected from the upper plate 22 (by about 0.1 to 1.5 mm,preferably 0.1 to 1.0 mm, for example), so as to come in elastic contactwith electrode 4 of liquid crystal module 1, establishing conduction.The top end face at the distal end of conductive toe-pin 30 is inclinedby an angle θ of 3° to 30° with respect to a plane perpendicular to theaxis of passage hole 23, preferably by an angle θ of 10° to 20°, or morepreferably by an angle θ of about 15°, so that a point radially andoutwardly offset from the center comes into elastic contact withelectrode 4 of liquid crystal module 1.

[0036] Further, each coil spring 32 is formed using a fine metallic wireof phosphor bronze, copper, stainless steel, beryllium bronze, pianowire or one of these plated with gold, and is fitted over conductivetoe-pin 28 and conductive head 30 and interposed between theseengagement flanges 29 and 31. This coil spring 32 can be formed by asimple structure by winding a fine metallic wire having a diameter of 30to 100 μm, preferably 30 to 80 μm with a consistent pitch of 50 μm, forexample, so as to generate a load of 30 to 60 g, for example, when it iscompressed by 0.5 mm. The reason for the diameter of the coil spring 32being limited within the range of 30 to 100 μm is that selection fromthis range makes it easy to realize a low-cost and low-load connection.The load of coil spring 32 when compressed is determined as appropriatedepending on the condition of connection.

[0037] Each coil spring 32 should be about 0.5 to 3.0 mm, preferably 1.0to 1.5 mm in length. Limiting the length within the above range makes itpossible to shut out adverse effect due to noise from the outside andmaintain the resilient characteristics.

[0038] In the above configuration, to create conduction between liquidcrystal module 1 and electronic circuit board 40, the liquid crystalmodule 1 should be put into setter 11 of light guide 10 and fixed byengagement fixing claws 12 and then electronic circuit board 40 shouldbe assembled from the conductive toe-pin 28 side on the opposite side(see FIG. 7). As a result, each conductive toe-pin 28 and conductivehead pin 30, both projected from light guide 10, retract opposing thecoil spring 32 and come close to one another, so that the conductivehead pin 30 is slightly inclined and its outer peripheral surface comesinto contact with the inner peripheral surface of conductive toe-pin 28.Thus, the contact between conductive toe-pins 28 and conductive headpins creates a current conduction path 30 without passing through coilsprings 32, which would be a cause of high resistance and establishesconduction between liquid crystal module 1 and electronic circuit board40.

[0039] According to the above configuration, since light guide 10 and apress-contact type connector are integrated instead of press fitting aseparate press-contact type connector into the attachment hole of lightguide 10, it is possible to markedly effectively prevent thepress-contact type connector from being set skewed or being buckled, andit is also possible to achieve remarkably easy assembly into thecellular phone, hence reducing the cost. Since no attachment hole needsto be formed in light guide 10, it is possible to completely omit theforming step of a high-accuracy attachment hole. Further, conductivehead pin 30 and coil spring 32 are integrated so that conductive headpin 30 can reciprocate within conductive toe-pin 28, it is possible tomake the height dimension markedly small (e.g., about 1.50 to 2.00 mm),thus making it possible to make the conduction path short.

[0040] Since inclination of the top end face of conductive head pin 30at the predetermined angle θ makes the conductive head pin 30 come intocontact with conductive toe-pin 28, not perpendicularly, but beinginclined with its center of gravity set off when it contacts, it ispossible to prevent contact failure and create a low-resistanceconductive path between conductive toe-pin 28 and conductive head pin30. Accordingly, in contrast to the conduction path by way of long coilspring 32, it is possible to realize a marked reduction in inductance byshortening the conduction path, and hence impart excellenthigh-frequency characteristics. Specifically, stable low resistance aslow as one-third of the conventional configuration and low-loadconnection (e.g., approximately 30 to 60 g/pin) can be highly expected,which will contribute to prevention of breakage of liquid crystal module1.

[0041] Further, since conductive head pin 30 moves while rubbing incontact inside conductive toe-pin 28, this simple configuration producesthe cleaning effect of prompt removal of dust and oxide coating adheringto the contact portion. Moreover, since coil spring 32 is held betweenengagement flanges 29 and 31 of conductive toe-pin 28 and conductivehead pin 30, this enables markedly easy assembled. Still more, since thepress-contact type connector is assembled by sandwiching the conductiveportion from above and below with a pair of plates 21 and 22, it ispossible to effectively prevent conductive toe-pin 28, conductive headpin 30 and coil spring 32 from being shifted, dislodging and fallingoff.

[0042] Next, FIG. 13 shows the second embodiment of the presentinvention, wherein the opposing face 31 a that opposes engagement flange29 of conductive toe-pin 28, in the engagement flange 31 of eachconductive head pin 30, i.e., the underside of the flange 31, isinclined.

[0043] Opposing face 31 a of engagement flange 31 is inclined at apredetermined angle θ with respect to a plane perpendicular to the axisof passage hole 23 or conductive head pin 30. Specifically, the face isinclined at an angle θ of 3° to 30°, preferably at an angle θ of 10° to20°, more preferably, an angle θ of about 15°. The upper part ofconductive head pin 30 is formed conically and projects from the upperplate 22 (by, for example, about 0.1 to 1.5 mm, preferably, 0.1 to 1.0mm), so as to come into elastic contact with electrode 4 of liquidcrystal module 1, establishing conduction. The other components are thesame as the above embodiment, so the description is omitted.

[0044] Also in this embodiment, the same operation and effect can beexpected. Further, inclination of the lower side of engagement flange 31at the predetermined angle θ also makes it possible to limit rotation ofeach conductive head pin 30, thereby being effective in preventingirregular pitches. In regard to this, when the top end face of eachconductive toe-pin 30 is inclined instead of the lower face ofengagement flange 31 being inclined at the predetermined angle θ, eachconductive head pin 30 is liable to rotate. As a result, there is morethan a small risk that the pointed topmost ends of conductive head pins30 shift left or right or front or rear as they rotate, and the pitchesbetween the top end faces of adjacent conductive head pins 30 vary,causing conduction defects.

[0045] In contrast to this, according to the present embodiment, theundersurface of engagement flange 31 is inclined in one direction so asto give directivity, and coil spring 32 is pressed into contact withthis inclined face in such a way that the spring end is made to movealong this inclined face. Therefore, each conductive head pin 30 willhardly slip and rotate at all. As a result, there is no risk that thepointed topmost end of conductive head pin 30 will shift left or rightor front or rear, and that the pitches between the top end faces ofadjacent conductive head pins 30 will vary, causing conduction defects.

[0046] Next, FIG. 14 shows the third embodiment of the presentinvention, wherein the opposing face 31 a that opposes engagement flange29 of conductive toe-pin 28, in the engagement flange 31 of eachconductive head pin 30 is inclined and the upper part of conductive headpin 30 is hemispherically formed so as to be projected from the upperplate 22. The other components are the same as the above embodiment, sothe description is omitted.

[0047] Also in this embodiment, it is apparent that the same operationand effect can be expected.

[0048] Next, FIG. 15 shows the fourth embodiment of the presentinvention, wherein the undersurface of engagement flange 31 that opposesengagement flange 29 of conductive toe-pin 28, in the engagement flange31 of each conductive head pin 30 is partly formed with a steppedportion 33 having an approximately Z-shaped section, and a coil spring32 is disposed between the engagement flange 29 of each conductivetoe-pin 28 and the stepped portion 33 of engagement flange 31 so thatthe coil spring 32 elastically urges conductive head pin 30 toward thetop face of housing 20. The other components are the same as the aboveembodiment, so the description is omitted.

[0049] Also in this embodiment, the same operation and effect can beexpected. Further, since the end of coil spring 32 is strongly pressedagainst the, incised and projected, stepped portion 33 on the undersideof engagement flange 31, conductive toe-pin 30 will hardly slip androtate at all. Accordingly, there is no risk that when the topmost endof conductive head pin 30 is inclined and pointed, the pointed topmostend will shift left or right or front or rear, the pitches between thetop end faces of adjacent conductive head pins 30 will vary, and thatconduction defects will occur. This configuration is markedly effectivewhen the undersurface of engagement flange 31 cannot be inclined at apredetermined angle θ.

[0050] Though description of the above embodiment was made referring tolight guide 10 with only liquid crystal module 1 mounted therein, thepresent invention should not be limited thereto. For example, aresin-formed one-piece light guide 10 with the assembly performance ofparts such as acoustic parts, keypads (film-like contacts) and the likebeing taken into account may be formed as shown in FIG. 1, and otherpress-contact type connectors in light guide 10 may be used for electricconnections between the parts and the circuit board so as to reduce thenumber of parts. Further, though housing 20 with a row of passage holes23 arranged in the length thereof was described in the above embodiment,the arrangement of the holes may be modified freely such that two, threeor four rows maybe formed. The number of conductive toe-pins 28 andconductive head pins 30 may be increased or decreased as appropriate.

[0051] Though the above embodiment was described with reference tocylindrical, conductive toe-pins 28 with a bottom having a U-shapedsection, the present invention should not be limited thereto. Forexample, the conductive toe-pin 28 may be formed as a hollow, prismshape with a bottom, or the bottom of conductive toe-pin 28 may bechanged, as appropriate, into a conical shape, frustoconical shape, or ashape having a semicircular section. Further, a hole may be formed inthe bottom of conductive toe-pin 28 when manufactured so that theinterior of conductive toe-pin 28 can be plated with gold utilizing thishole. This configuration makes the gold plating process easy. Moreover,flange 29 may be projected outwardly from the outer peripheral surfaceof conductive toe-pin 28. Still more, conductive head pin 30 may beformed in a prism shape and may be formed to be hollow instead of beingsolid.

INDUSTRIAL APPLICABILITY

[0052] As described heretofore, the present invention is effective inpreventing a connector from being set skewed, in a reliable manner.Further, it is possible to shorten the conduction path by reducing theheight dimension of the connector and realize an electric connectionwith low loads.

1. A press-contact type connector for cellular phones, comprising: ahollow, conductive toe-pin which is inserted in a passage hole of ahousing and exposed from one side of the housing; and a conductive headpin which is fitted into the conductive toe-pin and is slidablyprojected from the opposite side of the housing, characterized in thatthe housing and a light guide to which at least a liquid crystal moduleis mounted are integrated, a spring element is provided between theconductive toe-pin and the conductive head pin so as to urge at leastthe conductive head pin in the direction of the opposite side of thehousing.
 2. The press-contact type connector for cellular phonesaccording to claim 1, wherein the distal end of the conductive head pinis inclined at a predetermined angle with respect to a planeperpendicular to the axis of the passage hole of the housing, so thatthe conductive head pin is contacted with the conductive toe-pin in aninclined position within the conductive toe-pin, establishing aconduction path between the conductive toe-pin and conductive head pinthus in contact.
 3. The press-contact type connector for cellular phonesaccording to claim 1, wherein an engagement flange for the springelement is projected outwardly from the outer peripheral surface of eachof the conductive toe-pin and the conductive head pin, the opposing facethat opposes the engagement flange of the conductive toe-pin, of theengagement flange of the conductive head pin is inclined at apredetermined angle with respect to a plane perpendicular to the axis ofthe passage hole, so that the conductive head pin is contacted with theconductive toe-pin in an inclined position within the conductivetoe-pin, establishing a conduction path between the conductive toe-pinand conductive head pin thus in contact.
 4. A connecting structure for apress-contact type connector for cellular phones, characterized in thatthe press-contact type connector for cellular phones comprises: ahollow, conductive toe-pin which is inserted in a passage hole of ahousing and exposed from one side of the housing; and a conductive headpin which is fitted into the conductive toe-pin and is slidablyprojected from the opposite side of the housing, wherein the housing anda light guide to which at least a liquid crystal module is mounted areintegrated, a spring element is provided between the conductive toe-pinand the conductive head pin so as to urge at least the conductive headpin in the direction of the opposite side of the housing, and thepress-contact type connector is disposed between a pair of opposingelectrodes so as to establish conduction.
 5. The connecting structurefor a press-contact type connector for cellular phones according toclaim 4, wherein the distal end of the conductive head pin is inclinedat a predetermined angle with respect to a plane perpendicular to theaxis of the passage hole of the housing, so that the conductive head pinis contacted with the conductive toe-pin in an inclined position withinthe conductive toe-pin, establishing a conduction path between theconductive toe-pin and conductive head pin thus in contact.
 6. Theconnecting structure for a press-contact type connector for cellularphones according to claim 4, wherein an engagement flange for the springelement is projected outwardly from the outer peripheral surface of eachof the conductive toe-pin and the conductive head pin, the opposing facethat opposes the engagement flange of the conductive toe-pin, of theengagement flange of the conductive head pin is inclined at apredetermined angle with respect to a plane perpendicular to the axis ofthe passage hole, so that the conductive head pin is contacted with theconductive toe-pin in an inclined position within the conductivetoe-pin, establishing a conduction path between the conductive toe-pinand conductive head pin thus in contact.